Cleaning attachment for pasteurizers



Dec. 28 1926. E. WARD CLEANING ATTACHMENT FOR PASTEURIZERS Filed Jan. 8, 1926 Jfzi.

WITNESSES Hymn/6L XNVENTOR Evereii' Mimi ATTORNEYS Patented Dec. 28, 1926.

UNETE stares EVERETT HARD, OF CRANFORD, NET J JERSEY.

CLEANING ATTACZEWZENT F93 TEASTEUBIZERS.

Application filed January The present invention is concerned with a device for cleaning Pasteurizer tanks and is particularly applicable to a cleaning attachment for coil Pasteurizers.

In the usual type of coil Pasteurizer in which a spiral steam coil is rotatably mounted in a round bottomed tank, it is very diiiicult to clean the tank walls under the coils. These walls are inaccessible for the ordinary type of hand brush. with the consequence that thick casein deposits frequently form thereon. In accordance with the present invention, 1 overcome this ditficulty by the provision of a brush extending sub stantially the length of the tank, and detachably carried by the rotating steam coil. By rotating the coil, the brush sweeps the entire curved bottom of the tank under the coil. and effectively cleans the same. Means for securing the brush to the coils preferably includes some mechanism :tor exerting a spring tension on the brush, whereby the same is firmly pressed into engagement with the surface to be cleaned.

Objects of the invention are to provide a device of this character which may be readily attached to, or removed from the coil ot a Pasteurizer, a device in which the brush is dragged, rather than pushed, over the whole surface, a cleaning attachment which will be simple, practical and durable in construction, comparatively inexpensive to manufacture, and highly efficient in use.

With the above noted and other objects in View, the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter set forth and pointed out in the claims. The invention may be more fully understood from the following description in connection with the accompanying drawings, wherein- Fig. 1 is a broken view in longitudinal section through a coil Pasteurizer showing my improved cleaning attachment in applied position.

Fig. 2 is a transverse sectional view on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged sectional detail on the line 3-3 of Fig. 1.

The Pasteurizer shown is or" conventional construction, including a tank formed with a curved bottom wall 11 concentric with a helical steam coil 12 rigidly supported from a central steam supply pipe 13 by ra- 8, 1926. Serial No. 80,123.

dial braces let. The supply pipe 133 is journalled in bear ngs 15 in the end wa ls oi the tank. and may be rotated in any desired manner to revolve the steam coil and efi'ect renting and agtation ot the milk to be Pasmn'ized.

The device of the pre ent invention is a cleaning attadnnent inc= ding a brush 16 adzr ted to be supported from two or more conrolutions oi the steam coil in such a manner that it held under tension against the tank walls, and when the steam coil is revolved. cleans said walls.

h shown the brush supported at two om the coil 12. Inasmuch as these '0 identical, a dcscripsu'li'cc tor both. It will includes a spring i poil sup; ort

al 18, which will t htly grasp a One end oi he collar pivs a clamping screw 19 provided nut The other end of the eted or otherwise secured to a said casting including bifurcated adapted to straddle the clamping sc-ew 19, whereby when the wing nut is moved down to bind against the. arms 22,

collar 1'? will be contracted and the coil convolution 23 which it embraces, will be tight ly gripped.

T he casting 21 also includes an oit-set por tion 24, normally disposed in horizontal position when the clamps have been attached, this portion 24' serving to anchor the end 25 oi? a spring member 26 carrying and exerting tension on the brush 16. As seen best in Figs. 2 and 3, the spring member 26 bows upwardly away from the clamp, and then curves back, terminating in a trailing end disposed approximately under the clamp, so that a wide resilient arm is provided for dragging the brush over the tank walls. The spring terminates in a right angularly disposed downwardly presented finger 27 adapted to be clamped between the back 28 ot the brush 16 and a Warping strip 29 held to said back by bolts 30. A similar warping strip 31 mounted upon the opposite side of the back 28 is removably"securedby the same bolts, and serves to conveniently clamp the upright arm 32 of an L-bracket 33 against the back. Arm 32 is provided with a slotted opening at receiving the spring 26 and eilectively locking the finger 27 against accidental withdrawal from its position between the warping strip 29 and brush back 28.

It is to be understood that I have shown the spring 26 as one ellicient and suitable means for exerting tension on the brush 16 to maintain the same firmly pressed against the wall of the Pasteurizer as the steam coil revolves. It will be evident however, that I might resort to numerous alternative expedients in this connection. Various other types of springs might be employed, and various other constructions used to effect supporting of the brush and the exerting of spring pressure thereon to force it against the tank.

T he manner of using the attachment is substantially as follows. Immediately after milk has left the Pasteurizer, the tank is flushed with cold water, then partially filled with warm water and a cleaning solution such as oakite. The coil is run for ten minutes to thoroughly agitate the oakite and cause it to lave the coil. and tank walls. This solution readily softens and dissolves the casein deposits on the steam coil and on the tank walls. The brush is then secured in position by the simple expedient of wrapping the clamps 17 about spaced convolutions of the steam coil, and screwing the wing nuts home. The coil is again rotated and the tank eifectively cleaned. It may be noted that the rate of rotating the coil may be as high as 38 R. P. M., so that the cleaning operation will be quickly performed.

Various changes and alterations might be made in the general form and arrangement of parts described, without departing from the invention. Hence I do not Wish to limitmyself to the details set forth, but shall consider myself at liberty to make such changes and alterations as fairly fall with in the spirit and scope of the appended claims.

I claim:

' .1 A cleaning attachment for coil Pasposite sides to the back of the brush, spring arms includlng laterally disposed fingers clamped between one warping strip and the brush back, and adjustable clamping collars carried at the ends of the arms and'engageable with the rotating element of a Pasteurizer.

3. A device of the class described in claim 2, wherein brackets clamped between the other warping strip and the opposite side oi. the brush back, engages the spring arms to prevent displacement of the angularly disposed fingers;

EVERETT IVARDI 

